75mg Levothyroxine: Latest blood test - TSH -... - Thyroid UK

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75mg Levothyroxine

LouieHusky profile image
12 Replies

Latest blood test -

TSH - 1.7ml,

Haemoglobin - 40mmol/mol

White blood - 4.8

Red blood count - 4.31

Lymphocyte- 1.2

I’m thinking it’s time to get a private test and to see someone to explain it all to me.

My symptoms are awful at the moment, my brain is struggling to get my head around all of this, whereas this would not have been a problem in the past! Makes it even harder to help myself.

My body aches all over, my sinuses are always blocked, my voice is hoarse and throat sensitive to touch, tongue is scalloped and I’m still tired most of the time, I’m normally in bed before 9pm and that’s only from trying to keep myself up.

I also have a poorly 80 year old mum and borderline dementia dad who live on an island in Scotland 400 miles away!! I need to be well 😣

If I get a private blood test, do they explain the results or do I then need to book with a specialist? Or can I go direct to a specialist- Endocrinologist?!

Thanks to everyone on here for you help and taking the time to reply ☺️

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LouieHusky profile image
LouieHusky
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12 Replies
SlowDragon profile image
SlowDragonAdministrator

It’s 75mcg (not 75mg)

Which brand are you taking

How long on this dose

Was this most recent test early morning, ideally before 9am, only drinking water between waking and test and last dose levothyroxine 24 hours before test

Just testing TSH is totally inadequate as I explained in previous post here

healthunlocked.com/thyroidu...

You need FULL Thyroid and vitamin testing including both TPO and TG antibodies if not been tested yet

Please add most recent vitamin results and ranges

Exactly what vitamin supplements are you taking

LouieHusky profile image
LouieHusky in reply toSlowDragon

I take supplements everyday- I alternate between Seven Seas Omega 3 Multivitamins Woman 50+ and Hey Nutrition Thyroid Complex. I do alternate days. They cover everything I think. Maybe there’s better alternative?

My brand of Levothyroxine has recently been changed from Accord to Crescent and I have been on 75mg for 5-6 months. It has taken nearly a year to get from 25mg to 75mg.

I have always had early morning tests with nothing to eat & only water. And missing a dose for 24hrs as recommended.

From looking at all my tests they have only ever tested B12 which was 605 ng/l in June 24. (Range 197-771)

SlowDragon profile image
SlowDragonAdministrator in reply toLouieHusky

Multivitamins never recommended on here

Most contain iodine not recommended when on levothyroxine as this contains all the iodine you need

Iron - never supplement unless tested. Iron is toxic in excess. Post menopause, iron levels naturally increase

Test vitamin D, folate, B12 and ferritin and only supplement what’s necessary

Stop all supplements that contain biotin 5-7 days before all blood tests as biotin is used in lots of lab equipment and biotin supplements can falsely affect test results

SlowDragon profile image
SlowDragonAdministrator in reply toLouieHusky

My brand of Levothyroxine has recently been changed from Accord to Crescent and I have been on 75mg for 5-6 months. It has taken nearly a year to get from 25mg to 75mg.

Crescent is relatively new brand. Very few members have received it so far

Are you getting 75mcg dose tablets or 50mcg plus 25mcg tablets

Many people find Levothyroxine brands are not interchangeable.

Bloods should be retested 6-8 weeks after changing brand levothyroxine

Most easily available (and often most easily tolerated) are Mercury Pharma or Accord

Mercury Pharma make 25mcg, 50mcg and 100mcg tablets 

Mercury Pharma also boxed as Eltroxin. Both often listed by company name on pharmacy database - Advanz

Accord only make 50mcg and 100mcg tablets. Accord is also boxed as Almus via Boots, 

Wockhardt is very well tolerated, but only available in 25mcg tablets. Some people remain on Wockhardt, taking their daily dose as a number of tablets 

July 2024

Crescent levothyroxine. Dosages: 12.5, 25, 50, 75, 100

(Not yet known if all approved dosages are or will be available).

Excipients: lactose monohydrate, maize starch, croscarmellose sodium, gelatin and magnesium stearate.

Lactose free brands - currently Vencamil or Teva

Vencamil is lactose free and mannitol free. originally only available as 100mcg only, but 25mcg, 50mcg and 75mcg tablets became available Sept 2024

Prior to March 2023 Vencamil was called Aristo

How to get Vencamil stocked at your local pharmacy

healthunlocked.com/thyroidu...

Posts discussing Vencamil

healthunlocked.com/thyroidu...

healthunlocked.com/thyroidu....

Teva makes 12.5mcg 25mcg, 50mcg, 75mcg and 100mcg

Many patients do NOT get on well with Teva brand of Levothyroxine.

Teva is lactose free, but contains mannitol as a filler instead of lactose, which seems to be possible cause of problems. Mannitol seems to upset many people, it changes gut biome 

Helpful post about Teva

healthunlocked.com/thyroidu...

Posts that mention Teva

healthunlocked.com/search/p...

Teva poll

healthunlocked.com/thyroidu...

Helpful post about different brands

healthunlocked.com/thyroidu...

List of different brands available in U.K.

thyroiduk.org/if-you-are-hy...

Once you find a brand that suits you, best to make sure to only get that one at each prescription.

Watch out for brand change when dose is increased or at repeat prescription.

Government guidelines for GP in support of patients if you find it difficult/impossible to change brands

gov.uk/drug-safety-update/l...

If a patient reports persistent symptoms when switching between different levothyroxine tablet formulations, consider consistently prescribing a specific product known to be well tolerated by the patient.

academic.oup.com/jcem/artic...

Physicians should: 1) alert patients that preparations may be switched at the pharmacy; 2) encourage patients to ask to remain on the same preparation at every pharmacy refill; and 3) make sure patients understand the need to have their TSH retested and the potential for dosing readjusted every time their LT4 preparation is switched (18).

And here

pharmacymagazine.co.uk/clin...

Discussed here too

healthunlocked.com/thyroidu...

SlowDragon profile image
SlowDragonAdministrator

My body aches all over, my sinuses are always blocked, my voice is hoarse and throat sensitive to touch, tongue is scalloped and I’m still tired most of the time,

Tongue scalloped suggests low B12

Joint pain suggests low vitamin D

Sinus suggests lactose/dairy intolerance……very common to develop dairy and/or gluten intolerance on levothyroxine, when cause of your hypothyroidism is autoimmune

If I get a private blood test, do they explain the results or do I then need to book with a specialist? Or can I go direct to a specialist- Endocrinologist?!

Get a full thyroid and vitamin test via Medichecks or Blue horizon

Come back with new post here once you have results

Members can advise on next steps

If vitamin levels are deficient GP should prescribe supplements. (But they often don’t)

If vitamins are low you should self supplement to improve to GOOD levels ….then retest again in 2-4 months

Vitamin D at least over 80nmol

Serum B12 over 500

Active B12 over 70 (private testing only)

Folate at top of range

Ferritin at least over 70

If thyroid antibodies are over range this confirms cause is autoimmune disease. Get coeliac blood test via GP BEFORE considering trial on gluten free diet

Thyroid levels

Looking for Ft4 and Ft3 to be at least 60-70% through range

How much do you weigh in kilo

Even if we frequently start on only 50mcg, most people need to increase levothyroxine dose slowly upwards in 25mcg steps (retesting 6-8 weeks after each increase) until eventually on, or somewhere near full replacement dose (typically 1.6mcg levothyroxine per kilo of your weight per day)

cks.nice.org.uk/topics/hypo...

bnf.nice.org.uk/drugs/levot...

nhs.uk/medicines/levothyrox...

Adults usually start with a dose between 50 micrograms and 100 micrograms taken once a day. This may be increased gradually over a few weeks to between 100 micrograms and 200 micrograms taken once a day.

Some people need a bit less than guidelines, some a bit more

TSH should be under 2 as an absolute maximum when on levothyroxine

gponline.com/endocrinology-...

Graph showing median TSH in healthy population is 1-1.5

web.archive.org/web/2004060...

Comprehensive list of references for needing LOW TSH on levothyroxine

healthunlocked.com/thyroidu....

onlinelibrary.wiley.com/doi...

If symptoms of hypothyroidism persist despite normalisation of TSH, the dose of levothyroxine can be titrated further to place the TSH in the lower part of the reference range or even slightly below (i.e., TSH: 0.1–2.0 mU/L), but avoiding TSH < 0.1 mU/L. Use of alternate day dosing of different levothyroxine strengths may be needed to achieve this (e.g., 100 mcg for 4 days; 125 mcg for 3 days weekly).

sciencedirect.com/science/a...

The optimal daily dose in overt hypothyroidism is 1·5–1·8 μg per kg of bodyweight, rounded to the nearest 25 μg

LouieHusky profile image
LouieHusky in reply toSlowDragon

I weigh 67kg this has gone down slightly because I have completely lost my appetite.

I don’t have very much dairy or gluten because it has been a problem for me for a few years. But I haven’t cut it out completely.

I will get a test with Blue Horizon and repost.

And read all of the links….. thankyou x

LouieHusky profile image
LouieHusky in reply toSlowDragon

Is there a preferred option on Blue Horizon to get all the results I need? Should I get the Platinum ?

SlowDragon profile image
SlowDragonAdministrator in reply toLouieHusky

no point paying for Platinum test ……reverse T3 test is waste of money

Gold test is fine

Blue Horizon Thyroid Premium Gold includes BOTH TPO and TG antibodies, cortisol and vitamins

bluehorizonbloodtests.co.uk...

LouieHusky profile image
LouieHusky in reply toSlowDragon

I am on 100mcg and was taking that dose around a week before the test.

I did my test at 7am on Monday morning and put it straight in the post. Got results back today.

Thanks for any advice ☺️

Test results from Blue Horizon
SlowDragon profile image
SlowDragonAdministrator in reply toLouieHusky

I am on 100mcg and was taking that dose around a week before the test.

Really you should have waited 6-8 weeks after a dose increase before testing

Which brand is 100mcg Levo

Was last dose 24 hours before test

Have you stopped multivitamins

Did you stop all supplements that contain biotin 5-7 days before test?

Ferritin and folate…..request they retest

Should send you a new kit just to test these two

Vitamin D is too low

Look at adding a separate vitamin D supplement

GP should advise on self supplementing if over 50nmol, but under 75nmol (but they rarely do)

mm.wirral.nhs.uk/document_u...

But with Hashimoto’s, improving to at least around 100nmol by self supplementing may be better

pubmed.ncbi.nlm.nih.gov/218...

vitamindsociety.org/pdf/Vit...

Once you Improve level, very likely you will need on going maintenance dose to keep it there.

Test twice yearly when supplementing

Can test via NHS private testing service

vitamindtest.org.uk

Vitamin D mouth spray by Better You is very effective as it avoids poor gut function.

There’s a version made that also contains vitamin K2 Mk7.

One spray = 1000iu

amazon.co.uk/BetterYou-Dlux...

It’s trial and error what dose we need, with thyroid issues we frequently need higher dose than average

Vitamin D may prevent Autoimmune disease

newscientist.com/article/23...

Web links about taking important cofactors - magnesium and Vit K2-MK7

Magnesium best taken in the afternoon or evening, but must be four hours away from levothyroxine

betterbones.com/bone-nutrit...

medicalnewstoday.com/articl...

livescience.com/61866-magne...

sciencedaily.com/releases/2...

Recipe ideas

bbc.co.uk/food/articles/mag...

Interesting article by Dr Malcolm Kendrick on magnesium

drmalcolmkendrick.org/categ...

Vitamin K2 mk7

betterbones.com/bone-nutrit...

healthline.com/nutrition/vi...

SlowDragon profile image
SlowDragonAdministrator in reply toLouieHusky

very high TPO antibodies

Confirms autoimmune thyroid disease

Very little point testing for coeliac if on low levels gluten

Just cut it out absolutely completely

Similarly 2-3 months later consider trying dairy free too. Approx 50-60% find dairy free beneficial

With loads of vegan dairy alternatives these days it’s not as difficult as in the past

Post discussing gluten

healthunlocked.com/thyroidu...

Recent research in China into food intolerances with Hashimoto’s

healthunlocked.com/thyroidu...

SlowDragon profile image
SlowDragonAdministrator

Ferritin - looking to maintain at minimum of 70

if ferritin is below 50 get full iron panel

Never supplement iron (even in multivitamins) without doing full iron panel test for anaemia first and retest 3-4 times a year if self supplementing.

It’s possible to have low ferritin but high iron

Test early morning, only water to drink between waking and test. Avoid high iron rich dinner night before test

If taking any iron supplements stop 5-7 days before testing

Medichecks iron panel test

medichecks.com/products/iro...

Thyroid

Retest TSH, Ft4 and Ft3 in 2-3 months after being on constant unchanging dose and brand levothyroxine

Just TSH, Ft4 and Ft3 test - £32

monitormyhealth.org.uk/thyr...

10% off code here

thyroiduk.org/testing/priva...

Randox FULL thyroid test including both thyroid antibodies just £29

Test at home or in clinic

randoxhealth.com/en-GB/at-h...

Retest FULL Thyroid and vitamin levels at least annually

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